Portable energy storage and power supply device



FIG. 1 is a front perspective view of a portable energy storage and power supply device showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a back view thereof;

FIG. 6 is a right side view thereof; and,

FIG. 7 is a left side view thereof.

The ornamental design which is claimed is shown in solid lines in the figures. The broken lines shown represent unclaimed subject matter and form no part of the claim. 

I claim the ornamental design for a portable energy storage and power supply device, as shown and described. 